Terminals Of Ecu [10/2019 - 09/2022]

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2024 Lexus ES 350, 2024 Lexus ES 250, 2023 Lexus ES 350, 2023 Lexus ES 250, and 2022 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Check from the rear of the connector while it is connected to the components.

DCM (TELEMATICS TRANSCEIVER)

Fig 1: Terminals Of ECU

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
G128-1 (+B) - G128-20 (E)	GR - W-B	Power source (+B)	Engine switch off	11 to 14 V
G128-20 (E) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
G128-19 (IG2) - G128-20 (E)	P - W-B	Power source (IG)	Engine switch on (IG)	11 to 14 V
G128-19 (IG2) - G128-20 (E)	P - W-B	Power source (IG)	Engine switch off	Below 1 V
G128-25 (CANP)	R	CAN communication signal	-	-
G128-26 (CANN)	W	CAN communication signal	-	-
G128-30 (SLPD) - G128-20 (E)	SB - W-B	Steering lock bar position signal	Steering locked	11 to 14 V
G128-30 (SLPD) - G128-20 (E)	SB - W-B	Steering lock bar position signal	Steering unlocked	Below 1.5 V

CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Refer to TERMINALS OF ECU [06/2018 - 08/2020] , or refer to TERMINALS OF ECU [08/2020 - 09/2022]